SBIR Phase II: In situ PFC Monitoring Sensors

这个小企业创新研究（SBIR）第二阶段项目解决了监测水中全氟辛酸（PFOA）和全氟辛烷磺酸的分析需求。全氟辛烷磺酸和全氟辛烷磺酸是普遍存在的环境污染物，在废水、饮用水、人体血液和食物中都发现了低浓度的污染物。由于全氟辛烷磺酸、全氟辛烷磺酸和其他全氟化学品具有生物蓄积性、极持久性和毒性，一些国家已经建立了分析方法和排放限值。此外，围绕全氟辛烷磺酸和全氟辛烷磺酸污染地区的修复工作也做了大量工作。考虑到对环境和公众健康的影响，市场需要快速、选择性、低成本和现场便携式全氟辛烷磺酸和全氟辛烷磺酸传感。本研究旨在开发一种现场可展开的选择性电极，以低成本，低检测限，选择性和快速测量全氟辛烷磺酸和全氟辛烷磺酸。这项研究的更广泛影响是通过快速识别和筛选污染区域来改善公众健康。此外，这项研究将为环境监测、持续研究、合规和补救工作提供一种经济的全氟辛烷磺酸/全氟辛烷磺酸检测方法。目前，研究工作受到昂贵和耗时的液体萃取加上液相色谱和质谱法的阻碍。这项研究的目的是生产一种设备，将大大降低测试的障碍。其他更广泛的影响包括扩大传感器的应用，以测量血液、土壤和食物中的污染物。最重要的是，这些努力对于指导和监测补救措施以及实现现场研究具有重要和指导意义。我们认为这一努力是了解和减少持久性物质在环境中广泛存在的来源和途径的更广泛努力的一个组成部分。

This Small Business Innovation Research (SBIR) Phase II project addresses the analysis needs for monitoring perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) in water. PFOA and PFOS are ubiquitous environmental contaminants that have been found at low concentrations in waste water, drinking water, human blood, and in food. Because PFOA, PFOS and other perfluorochemicals are bio-accumulative, extremely persistent, and toxic, several states have established analytical methods and emission limits. Furthermore, there is a large effort surrounding remediation of PFOA and PFOS contaminated areas. Considering the impacts on both the environment and public health, there is a market need for rapid, selective, low cost, and field portable PFOA and PFOS sensing. This research aims at the development of a field deployable ion-selective electrode that permits selective and fast measurement of PFOA and PFOS with a low detection limit at low cost.The broader impact of this research is to improve public health by rapid identification and screening of polluted areas. Moreover, the research will enable an economical PFOS/PFOA detection method for environmental monitoring, continued research, compliance and remediation efforts. Currently, research efforts are hampered by costly and time consuming liquid extractions coupled with liquid chromatography and mass spectrometry. This research aims to produce a device that will significantly lower the barriers to testing. Additional broader impacts include expanded application of the sensor to measure the contaminant in blood, soil and food. Most importantly, these efforts are important and instructive to direct and monitor remediation and enable in-field research. We view this effort as an integral part of a wider effort to understand and reduce sources and pathways by which the persistent substance has become widespread in the environment.